Ideal protection when there is a high risk of theft The ABUS CityChain™ 1010 Chain Lock ensures your favourite bike is well-protected against theft. This ABUS chain lock is available in four different lengths, from 85cm to 170cm. Often, the best places to lock your bike are already in use, especially in the city. The 170cm version of the ABUS CityChain™ 1010 Chain Lock ensures you're well prepared for situations such as these. A 9mm thick hexagonal chain with a textile sleeve and an extra secure cylinder, which also protects against lock picking, keep thieves away.